Power transmission apparatus
US4899859A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1988 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Nov 2, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D67/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
To incorporate a viscous coupling type power transmission apparatus for a four-wheel driven automotive vehicle with an antiskid braking system, viscous torque transmission from a first rotary transmission shaft (coupled to the front wheel shaft) to a second rotary transmission shaft (coupled to the rear wheel shaft) is intermitted by a clutch mechanism provided for the power transmission apparatus whenever a foot brake is applied. That is, when a foot brake pressure is applied to the brake member of the power transmission apparatus, the clutch mechanism is disengaged via a cam ring to decouple the first rotary transmission shaft from the second rotary transmission shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.